/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:40:04,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:40:04,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:40:04,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-04 16:40:04,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:40:04,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:40:04,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:40:04,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:40:04,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:40:04,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:40:04,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:40:04,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:40:04,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:40:04,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:40:04,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:40:04,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:40:04,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:40:04,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:40:04,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:40:04,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:40:04,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:40:04,482 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:40:04,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:40:04,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:40:04,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:40:04,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:40:04,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:40:04,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:40:04,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:40:04,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:40:04,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:40:04,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:40:04,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:40:04,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:40:04,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:40:04,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:40:04,487 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:40:04,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:40:04,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:40:04,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:04,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:40:04,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:40:04,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:40:04,488 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:40:04,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:40:04,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:40:04,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:40:04,996 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:40:04,997 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:40:04,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-09-04 16:40:05,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37a6bcbf0/82c3756a897d4d6f9c3c02beeea91b39/FLAG6eeb3a313 [2020-09-04 16:40:05,727 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:40:05,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-09-04 16:40:05,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37a6bcbf0/82c3756a897d4d6f9c3c02beeea91b39/FLAG6eeb3a313 [2020-09-04 16:40:06,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/37a6bcbf0/82c3756a897d4d6f9c3c02beeea91b39 [2020-09-04 16:40:06,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:40:06,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:40:06,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:06,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:40:06,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:40:06,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441bb81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06, skipping insertion in model container [2020-09-04 16:40:06,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:40:06,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:40:06,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:06,339 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:40:06,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:40:06,403 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:40:06,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06 WrapperNode [2020-09-04 16:40:06,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:40:06,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:40:06,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:40:06,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:40:06,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... [2020-09-04 16:40:06,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:40:06,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:40:06,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:40:06,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:40:06,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:40:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:40:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:40:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 16:40:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 16:40:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 16:40:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 16:40:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:40:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:40:06,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:40:06,897 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:40:06,898 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:40:06,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:06 BoogieIcfgContainer [2020-09-04 16:40:06,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:40:06,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:40:06,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:40:06,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:40:06,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:40:06" (1/3) ... [2020-09-04 16:40:06,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afc6449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:06, skipping insertion in model container [2020-09-04 16:40:06,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:40:06" (2/3) ... [2020-09-04 16:40:06,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afc6449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:40:06, skipping insertion in model container [2020-09-04 16:40:06,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:40:06" (3/3) ... [2020-09-04 16:40:06,920 INFO L109 eAbstractionObserver]: Analyzing ICFG structure_assignment.i [2020-09-04 16:40:06,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:40:06,947 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:40:06,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:40:07,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:40:07,010 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:40:07,010 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:40:07,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:40:07,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:40:07,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:40:07,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:40:07,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:40:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-04 16:40:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-04 16:40:07,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:40:07,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:40:07,046 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:40:07,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:40:07,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1759541196, now seen corresponding path program 1 times [2020-09-04 16:40:07,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:40:07,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1856897699] [2020-09-04 16:40:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:40:07,152 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:40:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:07,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:40:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:40:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:40:07,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1856897699] [2020-09-04 16:40:07,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:40:07,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 16:40:07,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399993791] [2020-09-04 16:40:07,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 16:40:07,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:40:07,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 16:40:07,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:40:07,522 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states. [2020-09-04 16:40:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:40:07,794 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-09-04 16:40:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 16:40:07,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-04 16:40:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:40:07,809 INFO L225 Difference]: With dead ends: 44 [2020-09-04 16:40:07,810 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:40:07,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-04 16:40:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:40:07,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:40:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:40:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:40:07,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-04 16:40:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:40:07,860 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:40:07,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 16:40:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:40:07,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:40:07,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:40:07,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:40:08,028 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,029 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,029 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,029 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 16:40:08,029 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,030 INFO L271 CegarLoopResult]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: true [2020-09-04 16:40:08,030 INFO L271 CegarLoopResult]: At program point __blast_assertEXIT(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:08,030 INFO L271 CegarLoopResult]: At program point __blast_assertFINAL(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:08,030 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2020-09-04 16:40:08,031 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,031 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,031 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,031 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:40:08,031 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,032 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 19 26) the Hoare annotation is: true [2020-09-04 16:40:08,032 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 16:40:08,032 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) (= 2 |main_#t~mem1|)) [2020-09-04 16:40:08,032 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-09-04 16:40:08,033 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (= 2 |main_#t~mem1|) [2020-09-04 16:40:08,033 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-09-04 16:40:08,033 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (and (= 2 |main_#t~mem1|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 16:40:08,033 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 16:40:08,034 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (and (= 2 |main_#t~mem1|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 16:40:08,034 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,034 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,034 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 19 26) the Hoare annotation is: true [2020-09-04 16:40:08,035 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 16:40:08,035 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,035 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (and (= 2 |main_#t~mem2|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 16:40:08,035 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 16:40:08,036 INFO L264 CegarLoopResult]: At program point L24-3(line 24) the Hoare annotation is: false [2020-09-04 16:40:08,036 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,036 INFO L264 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (and (= 2 |main_#t~mem2|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 16:40:08,037 INFO L264 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 16:40:08,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:40:08 BoogieIcfgContainer [2020-09-04 16:40:08,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:40:08,059 INFO L168 Benchmark]: Toolchain (without parser) took 1999.87 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 109.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:08,060 INFO L168 Benchmark]: CDTParser took 1.16 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:40:08,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.50 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 90.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:08,062 INFO L168 Benchmark]: Boogie Preprocessor took 138.98 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 90.6 MB in the beginning and 178.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:08,063 INFO L168 Benchmark]: RCFGBuilder took 361.85 ms. Allocated memory is still 200.3 MB. Free memory was 178.1 MB in the beginning and 164.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:08,064 INFO L168 Benchmark]: TraceAbstraction took 1147.24 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 109.9 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:40:08,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16 ms. Allocated memory is still 136.3 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.50 ms. Allocated memory is still 136.3 MB. Free memory was 100.4 MB in the beginning and 90.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.98 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 90.6 MB in the beginning and 178.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 361.85 ms. Allocated memory is still 200.3 MB. Free memory was 178.1 MB in the beginning and 164.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1147.24 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 109.9 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 11 SDslu, 67 SDs, 0 SdLazy, 59 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 34 PreInvPairs, 44 NumberOfFragments, 179 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...